
import java.io.*;
import java.util.*;

/**
 * 
 */
public abstract class Bird {

    protected FlyBehavior flyBehavior;

    public Bird() {
    }

    /**
     * 
     */
    public void fly() {
        flyBehavior.fly();
    }

    /**
     * 
     */
    public void display() {
        // TODO implement here
    }

    /**
     * 
     */
    public Bird() {
        // TODO implement here
    }

}